When Odo is in the form of a glass and gets broken, the little pieces of him all swarm back together. But if a changeling can keep control of parts separated from the rest of his body, then why does blood revert to liquid form during a blood test?

Body Count :

One - Ro-Kel.

Plotline

When a criminal offers Odo a chance to learn more about his past, the Constable violates orders to go to the Gamma Quadrant with him.